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Enzyme discovery: Enzyme selection and pathway design

Abstract : In this protocol, we describe in silico design methods that can assist in the engineering of production pathways that are based on enzymatic transformations. The described protocols are the basis for automated processes to be integrated into an iterative Design-Build-Test-Learn cycle in synthetic biology for chemical production. Selecting the right enzyme sequence for a desired biocatalytic activity from the extensive catalogue of sequences available in databases is challenging and can dramatically influence the success of bioproducing chemical compounds. A method for enzyme selection is presented that helps identifying candidate enzyme sequences through a scoring approach that considers not only sequence homology but also reaction similarity. Selecting a viable biochemical pathway for compound production requires screening large sets of reactions in a process involving combinatorial complexity. A method for pathway design using retrosynthesis is presented. The protocol allows the discovery of alternative chemical pathways leading to the final product by using reaction rules of selectable degree of specificity. The protocols can be reversed through clustering discovery and product identification processes. The integration of these protocols into a general pipeline provides a toolbox for enhanced automated synthetic biology design and metabolic engineering.
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Submitted on : Friday, June 5, 2020 - 5:27:47 AM
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Pablo Carbonell, Mathilde Koch, Thomas Duigou, Jean-Loup Faulon. Enzyme discovery: Enzyme selection and pathway design. Methods in Enzymology, 608, Elsevier Academic Press Inc., pp.25, 2018, Methods in Enzymology, 978-0-12-815148-8. ⟨10.1016/bs.mie.2018.04.005⟩. ⟨hal-02789661⟩



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